Limits RegistryPUBLIC RECORD
Limits RegistryKOI 1843.03, an ultra-short-period rocky planet candidate identified in Kepler data, orbits its red dwarf host star once every 4.245 hours — the fastest known exoplanet orbit, skimming so close to its star that its rock must be dense enough (iron-rich) to avoid being torn apart by tidal forces. Its extreme proximity means a 'year' there is shorter than a single work shift on Earth.
The question, scope, and sources behind this Registry record.
KOI 1843.03, an ultra-short-period rocky planet candidate identified in Kepler data, orbits its red dwarf host star once every 4.245 hours — the fastest known exoplanet orbit, skimming so close to its star that its rock must be dense enough (iron-rich) to avoid being torn apart by tidal forces. Its extreme proximity means a 'year' there is shorter than a single work shift on Earth.
The shortest confirmed orbital period of any known exoplanet around its host star.
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Current frontiers derived from accepted Claims.
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The frontier as it changed over time.
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1 accepted Claim, with 1 linked evidence records.
Permanent ID limitsregistry.com/limits/LR-FASTEST-EXOPLANET-ORBIT
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Limits Registry. LR-FASTEST-EXOPLANET-ORBIT. Fastest known exoplanet orbital period. 2026.